Simple PHP Invoice Script

[sitefever]

Anybody know of a very simple PHP invoice script where you can create an invoice and have the details saved to SQL for future refrence? You should be able to go in day after day and add another item to the invoice until you are ready to send the invoice, then you can email a copy to the recipient along with a PayPal link for payment. Paid or free, doesnt matter.

 

 

Thanks!